Crouch jumped across a spazzing out wall (thankfully textures were more stable than on the webms), fought some zombies, couldn't read too much into the dialogue due to respawning. I'm not sure if I've seen much of the content, couldn't find anything else.
Zombies are pure black which makes their attacks hard to read sometimes, but it adds a nice twist to group combat when zombies become an indiscernible clump, adding to the danger.
I managed to softlock the game by opening journal, which made all the other controls stop working.